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post-meta-icon"></i><span class="post-meta-label">发表于</span><time class="post-meta-date-created" datetime="2019-03-14T14:01:00.000Z" title="发表于 2019-03-14 22:01:00">2019-03-14</time><span class="post-meta-separator">|</span><i class="fas fa-history fa-fw post-meta-icon"></i><span class="post-meta-label">更新于</span><time class="post-meta-date-updated" datetime="2020-04-04T06:17:45.542Z" title="更新于 2020-04-04 14:17:45">2020-04-04</time></span><span class="post-meta-categories"><span class="post-meta-separator">|</span><i class="fas fa-inbox fa-fw post-meta-icon"></i><a class="post-meta-categories" href="/categories/ELK/">ELK</a></span></div><div class="meta-secondline"><span class="post-meta-separator">|</span><span class="post-meta-wordcount"><i class="far fa-file-word fa-fw post-meta-icon"></i><span class="post-meta-label">字数总计:</span><span class="word-count">540</span><span class="post-meta-separator">|</span><i class="far fa-clock fa-fw post-meta-icon"></i><span class="post-meta-label">阅读时长:</span><span>2分钟</span></span><span class="post-meta-separator">|</span><span class="post-meta-pv-cv" id="" data-flag-title="elasticsearch cat API"><i class="far fa-eye fa-fw post-meta-icon"></i><span class="post-meta-label">阅读量:</span><span id="busuanzi_value_page_pv"></span></span><span class="post-meta-separator">|</span><span class="post-meta-commentcount"><i class="far fa-comments fa-fw post-meta-icon"></i><span class="post-meta-label">评论数:</span><a href="/2019/03/14/elasticsearch-cat-api.html#post-comment"><span class="gitalk-comment-count"></span></a></span></div></div></div></header><main class="layout" id="content-inner"><div id="post"><article class="post-content" id="article-container"><h4 id="cat-API"><a href="#cat-API" class="headerlink" title="cat API"></a>cat API</h4><p><a target="_blank" rel="noopener" href="https://www.elastic.co/guide/en/elasticsearch/reference/current/cat.html">官方地址</a></p>
<blockquote>
<p>GET /_cat/XXX?v<br>GET /_cat/XXX?v&amp;format=json</p>
</blockquote>
<p>v 是指带着列信息</p>
<p>支持指定返回内容的格式 默认为text</p>
<p>?format=text(json/smile/yaml/cbor)</p>
<a id="more"></a>

<h5 id="查看节点别名"><a href="#查看节点别名" class="headerlink" title="查看节点别名"></a>查看节点别名</h5><blockquote>
<p>GET /_cat/aliases?v<br>curl -X GET “192.168.xxx.xxx:9200/_cat/aliases?v”</p>
</blockquote>
<h5 id="每个节点分配了几个shard，对磁盘的占用空间大小，使用率"><a href="#每个节点分配了几个shard，对磁盘的占用空间大小，使用率" class="headerlink" title="每个节点分配了几个shard，对磁盘的占用空间大小，使用率"></a>每个节点分配了几个shard，对磁盘的占用空间大小，使用率</h5><blockquote>
<p>GET /_cat/allocation?v<br>curl -X GET “192.168.xxx.xxx:9200/_cat/allocation?v”</p>
</blockquote>
<h5 id="群集或单个索引的document计数"><a href="#群集或单个索引的document计数" class="headerlink" title="群集或单个索引的document计数"></a>群集或单个索引的document计数</h5><blockquote>
<p>GET /_cat/count?v<br>curl -X GET “192.168.xxx.xxx:9200/_cat/count?v</p>
<p>GET /_cat/count/index_name?v<br>curl -X GET “192.168.xxx.xxx:9200/_cat/count/index_name?v”</p>
</blockquote>
<h5 id="显示集群中每个数据节点上fielddata当前正在使用的堆内存量"><a href="#显示集群中每个数据节点上fielddata当前正在使用的堆内存量" class="headerlink" title="显示集群中每个数据节点上fielddata当前正在使用的堆内存量"></a>显示集群中每个数据节点上fielddata当前正在使用的堆内存量</h5><blockquote>
<p>GET /_cat/fielddata?v<br>curl -X GET “192.168.xxx.xxx:9200/_cat/fielddata?v”</p>
</blockquote>
<h5 id="查看集群健康情况"><a href="#查看集群健康情况" class="headerlink" title="查看集群健康情况"></a>查看集群健康情况</h5><blockquote>
<p>GET /_cat/health?v<br>curl -X GET “192.168.xxx.xxx:9200/_cat/health?v”</p>
</blockquote>
<h5 id="查看索引的信息"><a href="#查看索引的信息" class="headerlink" title="查看索引的信息"></a>查看索引的信息</h5><blockquote>
<p>GET _cat/indices?v<br>GET _cat/indices/index_name?v<br>curl -X GET “192.168.xxx.xxx:9200/_cat/indices/twi*?v&amp;s=index”</p>
</blockquote>
<h5 id="查看master信息"><a href="#查看master信息" class="headerlink" title="查看master信息"></a>查看master信息</h5><blockquote>
<p>GET /_cat/master?v<br>curl -X GET “192.168.xxx.xxx:9200/_cat/master?v”</p>
</blockquote>
<h5 id="查看node信息"><a href="#查看node信息" class="headerlink" title="查看node信息"></a>查看node信息</h5><blockquote>
<p>GET /_cat/nodes?v<br>curl -X GET “192.168.xxx.xxx:9200/_cat/nodes?v”</p>
</blockquote>
<h5 id="当前pending没执行完的task的具体情况，执行的是什么操作"><a href="#当前pending没执行完的task的具体情况，执行的是什么操作" class="headerlink" title="当前pending没执行完的task的具体情况，执行的是什么操作"></a>当前pending没执行完的task的具体情况，执行的是什么操作</h5><blockquote>
<p>创建索引，更新映射，分配或失败分片的列表<br>GET /_cat/pending_tasks?v<br>curl -X GET “192.168.xxx.xxx:9200/_cat/pending_tasks?v”</p>
</blockquote>
<h5 id="查看安装的插件"><a href="#查看安装的插件" class="headerlink" title="查看安装的插件"></a>查看安装的插件</h5><blockquote>
<p>GET /_cat/plugins?v&amp;s=component&amp;h=name,component,version,description<br>curl -X GET “192.168.xxx.xxx:9200/_cat/plugins?v&amp;s=component&amp;h=name,component,version,description”</p>
</blockquote>
<h5 id="shard-recovery恢复的过程情况"><a href="#shard-recovery恢复的过程情况" class="headerlink" title="shard recovery恢复的过程情况"></a>shard recovery恢复的过程情况</h5><blockquote>
<p>GET /_cat/recovery?v<br>curl -X GET “192.168.xxx.xxx:9200/_cat/recovery?v”</p>
</blockquote>
<h5 id="查看在群集中注册的快照存储库"><a href="#查看在群集中注册的快照存储库" class="headerlink" title="查看在群集中注册的快照存储库"></a>查看在群集中注册的快照存储库</h5><blockquote>
<p>GET /_cat/repositories?v<br>curl -X GET “192.168.xxx.xxx:9200/_cat/repositories?v</p>
</blockquote>
<h5 id="查看线程池使用"><a href="#查看线程池使用" class="headerlink" title="查看线程池使用"></a>查看线程池使用</h5><blockquote>
<p>GET /_cat/thread_pool<br>curl -X GET “192.168.xxx.xxx:9200/_cat/thread_pool”</p>
</blockquote>
<h5 id="查看shard情况"><a href="#查看shard情况" class="headerlink" title="查看shard情况"></a>查看shard情况</h5><blockquote>
<p>GET _cat/shards?v<br>GET _cat/shards/index_name?v<br>curl -X GET “192.168.xxx.xxx:9200/_cat/shards/index_name?v</p>
</blockquote>
<h5 id="索引segment文件的情况，在哪个node上，有多少个document，占用了多少磁盘空间，有多少数据在内存中，是否可以搜索"><a href="#索引segment文件的情况，在哪个node上，有多少个document，占用了多少磁盘空间，有多少数据在内存中，是否可以搜索" class="headerlink" title="索引segment文件的情况，在哪个node上，有多少个document，占用了多少磁盘空间，有多少数据在内存中，是否可以搜索"></a>索引segment文件的情况，在哪个node上，有多少个document，占用了多少磁盘空间，有多少数据在内存中，是否可以搜索</h5><blockquote>
<p>GET /_cat/segments?v<br>GET _cat/segments/index_name?v<br>curl -X GET “192.168.xxx.xxx:9200/_cat/segments/index_name?v</p>
</blockquote>
<h5 id="查看tempalte"><a href="#查看tempalte" class="headerlink" title="查看tempalte"></a>查看tempalte</h5><blockquote>
<p>GET /_cat/templates?v&amp;s=name<br>curl -X GET “192.168.xxx.xxx:9200/_cat/templates?v&amp;s=name”</p>
</blockquote>
</article><div class="post-copyright"><div class="post-copyright__author"><span class="post-copyright-meta">文章作者: </span><span class="post-copyright-info"><a href="mailto:undefined">liuzhihang</a></span></div><div class="post-copyright__type"><span class="post-copyright-meta">文章链接: </span><span class="post-copyright-info"><a href="https://liuzhihang.com/2019/03/14/elasticsearch-cat-api.html">https://liuzhihang.com/2019/03/14/elasticsearch-cat-api.html</a></span></div><div class="post-copyright__notice"><span class="post-copyright-meta">版权声明: </span><span class="post-copyright-info">本博客所有文章除特别声明外，均采用 <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/" target="_blank">CC BY-NC-SA 4.0</a> 许可协议。转载请注明来自 <a href="https://liuzhihang.com" target="_blank">程序员小航</a>！</span></div></div><div class="tag_share"><div class="post-meta__tag-list"><a class="post-meta__tags" href="/tags/ELK/">ELK</a></div><div class="post_share"><div class="social-share" 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href="#%E6%AF%8F%E4%B8%AA%E8%8A%82%E7%82%B9%E5%88%86%E9%85%8D%E4%BA%86%E5%87%A0%E4%B8%AAshard%EF%BC%8C%E5%AF%B9%E7%A3%81%E7%9B%98%E7%9A%84%E5%8D%A0%E7%94%A8%E7%A9%BA%E9%97%B4%E5%A4%A7%E5%B0%8F%EF%BC%8C%E4%BD%BF%E7%94%A8%E7%8E%87"><span class="toc-number">1.2.</span> <span class="toc-text">每个节点分配了几个shard，对磁盘的占用空间大小，使用率</span></a></li><li class="toc-item toc-level-5"><a class="toc-link" href="#%E7%BE%A4%E9%9B%86%E6%88%96%E5%8D%95%E4%B8%AA%E7%B4%A2%E5%BC%95%E7%9A%84document%E8%AE%A1%E6%95%B0"><span class="toc-number">1.3.</span> <span class="toc-text">群集或单个索引的document计数</span></a></li><li class="toc-item toc-level-5"><a class="toc-link" href="#%E6%98%BE%E7%A4%BA%E9%9B%86%E7%BE%A4%E4%B8%AD%E6%AF%8F%E4%B8%AA%E6%95%B0%E6%8D%AE%E8%8A%82%E7%82%B9%E4%B8%8Afielddata%E5%BD%93%E5%89%8D%E6%AD%A3%E5%9C%A8%E4%BD%BF%E7%94%A8%E7%9A%84%E5%A0%86%E5%86%85%E5%AD%98%E9%87%8F"><span class="toc-number">1.4.</span> <span class="toc-text">显示集群中每个数据节点上fielddata当前正在使用的堆内存量</span></a></li><li class="toc-item toc-level-5"><a class="toc-link" href="#%E6%9F%A5%E7%9C%8B%E9%9B%86%E7%BE%A4%E5%81%A5%E5%BA%B7%E6%83%85%E5%86%B5"><span class="toc-number">1.5.</span> <span class="toc-text">查看集群健康情况</span></a></li><li class="toc-item toc-level-5"><a class="toc-link" href="#%E6%9F%A5%E7%9C%8B%E7%B4%A2%E5%BC%95%E7%9A%84%E4%BF%A1%E6%81%AF"><span class="toc-number">1.6.</span> <span class="toc-text">查看索引的信息</span></a></li><li class="toc-item toc-level-5"><a class="toc-link" href="#%E6%9F%A5%E7%9C%8Bmaster%E4%BF%A1%E6%81%AF"><span class="toc-number">1.7.</span> <span class="toc-text">查看master信息</span></a></li><li class="toc-item toc-level-5"><a class="toc-link" href="#%E6%9F%A5%E7%9C%8Bnode%E4%BF%A1%E6%81%AF"><span class="toc-number">1.8.</span> <span class="toc-text">查看node信息</span></a></li><li class="toc-item toc-level-5"><a class="toc-link" href="#%E5%BD%93%E5%89%8Dpending%E6%B2%A1%E6%89%A7%E8%A1%8C%E5%AE%8C%E7%9A%84task%E7%9A%84%E5%85%B7%E4%BD%93%E6%83%85%E5%86%B5%EF%BC%8C%E6%89%A7%E8%A1%8C%E7%9A%84%E6%98%AF%E4%BB%80%E4%B9%88%E6%93%8D%E4%BD%9C"><span class="toc-number">1.9.</span> <span class="toc-text">当前pending没执行完的task的具体情况，执行的是什么操作</span></a></li><li class="toc-item toc-level-5"><a class="toc-link" href="#%E6%9F%A5%E7%9C%8B%E5%AE%89%E8%A3%85%E7%9A%84%E6%8F%92%E4%BB%B6"><span class="toc-number">1.10.</span> <span class="toc-text">查看安装的插件</span></a></li><li class="toc-item toc-level-5"><a class="toc-link" href="#shard-recovery%E6%81%A2%E5%A4%8D%E7%9A%84%E8%BF%87%E7%A8%8B%E6%83%85%E5%86%B5"><span class="toc-number">1.11.</span> <span class="toc-text">shard recovery恢复的过程情况</span></a></li><li class="toc-item toc-level-5"><a class="toc-link" href="#%E6%9F%A5%E7%9C%8B%E5%9C%A8%E7%BE%A4%E9%9B%86%E4%B8%AD%E6%B3%A8%E5%86%8C%E7%9A%84%E5%BF%AB%E7%85%A7%E5%AD%98%E5%82%A8%E5%BA%93"><span class="toc-number">1.12.</span> <span class="toc-text">查看在群集中注册的快照存储库</span></a></li><li class="toc-item toc-level-5"><a class="toc-link" href="#%E6%9F%A5%E7%9C%8B%E7%BA%BF%E7%A8%8B%E6%B1%A0%E4%BD%BF%E7%94%A8"><span class="toc-number">1.13.</span> <span class="toc-text">查看线程池使用</span></a></li><li class="toc-item toc-level-5"><a class="toc-link" href="#%E6%9F%A5%E7%9C%8Bshard%E6%83%85%E5%86%B5"><span class="toc-number">1.14.</span> <span class="toc-text">查看shard情况</span></a></li><li class="toc-item toc-level-5"><a class="toc-link" href="#%E7%B4%A2%E5%BC%95segment%E6%96%87%E4%BB%B6%E7%9A%84%E6%83%85%E5%86%B5%EF%BC%8C%E5%9C%A8%E5%93%AA%E4%B8%AAnode%E4%B8%8A%EF%BC%8C%E6%9C%89%E5%A4%9A%E5%B0%91%E4%B8%AAdocument%EF%BC%8C%E5%8D%A0%E7%94%A8%E4%BA%86%E5%A4%9A%E5%B0%91%E7%A3%81%E7%9B%98%E7%A9%BA%E9%97%B4%EF%BC%8C%E6%9C%89%E5%A4%9A%E5%B0%91%E6%95%B0%E6%8D%AE%E5%9C%A8%E5%86%85%E5%AD%98%E4%B8%AD%EF%BC%8C%E6%98%AF%E5%90%A6%E5%8F%AF%E4%BB%A5%E6%90%9C%E7%B4%A2"><span class="toc-number">1.15.</span> <span class="toc-text">索引segment文件的情况，在哪个node上，有多少个document，占用了多少磁盘空间，有多少数据在内存中，是否可以搜索</span></a></li><li class="toc-item toc-level-5"><a class="toc-link" href="#%E6%9F%A5%E7%9C%8Btempalte"><span class="toc-number">1.16.</span> <span class="toc-text">查看tempalte</span></a></li></ol></li></ol></div></div><div class="card-widget card-recent-post"><div class="item-headline"><i class="fas fa-history"></i><span>最新文章</span></div><div class="aside-list"><div class="aside-list-item"><a class="thumbnail" href="/2021/09/04/the_converter_converts_front_end_parameters_to_enumerations.html" title="使用 SpringBoot 转换器将前端参数转换为枚举"><img src= "https://cdn.jsdelivr.net/gh/liuzhihang/oss/pic/loading.gif" data-lazy-src="https://cdn.jsdelivr.net/gh/liuzhihang/oss/pic/article/uztio4-T5n5Wm.jpg" onerror="this.onerror=null;this.src='https://cdn.jsdelivr.net/gh/liuzhihang/oss/pic/feature/92776_n5aac6.jpg'" alt="使用 SpringBoot 转换器将前端参数转换为枚举"/></a><div class="content"><a class="title" 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